Acta Cryst. (2009). E65, m1142-m1143  [ doi:10.1107/S1600536809033625 ]

(Benzoato-O)chlorido[(-)-sparteine-²N,N']zinc(II)

J. L. Alcántara-Flores, N. Arias-López, S. Bernès, R. Gutiérrez and Y. Reyes Ortega

Abstract: The title complex, [Zn(C₇H₅O₂)Cl(C₁₅H₂₆N₂)], used for the magnetic dilution of the analogous Cu^II complex, was synthesized through a direct synthesis route. The coordination geometry around Zn^II is best described as distorted tetrahedral, the largest deviation arising from the (-)-sparteine ligand, as is invariably found in complexes containing this rather rigid molecule. The benzoate anion behaves as a monodentate ligand, with a non-coordinating ZnO separation of 2.969 (5) Å. Molecules are packed in the crystal without significant intermolecular interactions. The shortest ZnZn separation [6.8186 (7) Å] is observed between molecules related through the 2₁ screw axis. This is an important feature for the magnetic behaviour of the Cu^II analogue, which is intended for modeling isolated metal centers in the active site of type 1 blue copper proteins.

Online 29 August 2009

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